android建立域名套接字

import android.os.Bundle;
import android.util.Log;
import androidx.appcompat.app.AppCompatActivity;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "DomainSocketServer";
    private static final String SOCKET_PATH = "/tmp/mysocket";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        new Thread(() -> {
            try {
                ServerSocket serverSocket = new ServerSocket(SOCKET_PATH);
                Log.d(TAG, "Server started");

                while (true) {
                    Socket clientSocket = serverSocket.accept();
                    Log.d(TAG, "Client connected");

                    // Handle client communication
                    // ...

                    clientSocket.close();
                }
            } catch (IOException e) {
                Log.e(TAG, "Server error", e);
            }
        }).start();
    }
}

import android.os.Bundle;
import android.util.Log;
import androidx.appcompat.app.AppCompatActivity;
import java.io.IOException;
import java.net.Socket;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "DomainSocketClient";
    private static final String SOCKET_PATH = "/tmp/mysocket";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        new Thread(() -> {
            try {
                Socket socket = new Socket(SOCKET_PATH);
                Log.d(TAG, "Connected to server");

                // Handle server communication
                // ...

                socket.close();
            } catch (IOException e) {
                Log.e(TAG, "Client error", e);
            }
        }).start();
    }
}

// 确保路径存在
File socketFile = new File(SOCKET_PATH);
if (!socketFile.exists()) {
    socketFile.createNewFile();
}

// 设置权限
socketFile.setReadable(true, false);
socketFile.setWritable(true, false);

// 发送数据
OutputStream outputStream = socket.getOutputStream();
outputStream.write("Hello".getBytes("UTF-8"));

// 接收数据
InputStream inputStream = socket.getInputStream();
byte[] buffer = new byte[1024];
int bytesRead = inputStream.read(buffer);
String receivedData = new String(buffer, 0, bytesRead, "UTF-8");